A body falling for 2 s covers a distance a which is equal to that covered in next l s. If `g = 10 ms^ -2`, the distance s is

Options

A. 30 m
B. 10 m
C. 60 m
D. 20 m

Explanation

Tension in string ,`T=mv^2/r+mgcostheta`
At lowest position, `theta=0^0`
`impliesT=(mv_2)/r+mgcos0^0`
`T=(mv^2)/r+mg`